/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *  http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package com.google.code.twiddling.core.command;

import com.google.code.twiddling.core.context.Environment;
import com.google.code.twiddling.core.io.IO;
import com.google.code.twiddling.core.registry.CommandRegistry;

/**
 * 
 * @author <a href="mailto:jeff.yuchang@gmail.com">Jeff Yu</a>
 */
public class DefaultCommandContext implements CommandContext {

	private IO io;
    private CommandMetadata metadata;
    private CommandResult result;
	private CommandRegistry registry;
	private Environment env;
	
    private ICommand command;
    
    
	public DefaultCommandContext(Environment env, IO io, CommandRegistry registry, CommandMetadata metadata) {
		this.env = env;
		this.io = io;
		this.registry = registry;
        this.metadata = metadata;
	}
	
	public IO getIO() {
		return io;
	}

    public CommandResult getResult() {
        if(result == null) {
            result = new CommandResult();
        }
        return result;
    }

    public CommandMetadata getMetadata() {
        return metadata;
    }

	public CommandRegistry getCommandRegistry() {
		return registry;
	}

    public ICommand getCommand() {
        return command;
    }

    public void setCommand(ICommand command) {
        this.command = command;
    }

	public Environment getEnvironment() {
		return this.env;
	}
}
